Abstract: The invention relates to a method (200) for determining the sloshing of a liquid loading of a vessel, said method (200) comprising: a step (206) of determination of a monomodal excitation as a function of a multimodal excitation to which said vessel is subjected, the multimodal excitation comprising a state of the swell and a wind sea state, wherein the state of the swell comprises a direction of the swell and the wind sea state comprises a wind sea direction, and wherein the monomodal excitation exhibits a total direction equivalent to one out of the direction of the swell and the wind sea direction closest to a direction at right angles to the longitudinal axis of the vessel, a step (208) of determination of a datum relating to the sloshing of said loading as a function of the monomodal excitation.

Abstract: The invention relates to monitoring and predicting the operation of a pump (30) arranged in a tank (3) for transporting a liquid product on board a ship (1), the pump (30) having a pump-head (31) arranged in the tank (3). A tripping risk parameter of the pump (30) is estimated at least as a function of a required net positive suction head of the pump (30), of the current filling level of the tank and of a current state of movement, which is a current sea state and/or a current state of movement of the ship, and a user is provided with an indication as a function of said tripping risk parameter. A particular application to ships for transporting a cold liquid product, more particularly to ships for transporting LNG of the type which consume the boil-off gas for their propulsion.

Abstract: The invention relates to a method (200) for determining the sloshing of a liquid loading of a vessel, said method (200) comprising: a step (206) of determination of a monomodal excitation as a function of a multimodal excitation to which said vessel is subjected, the multimodal excitation comprising a state of the swell and a wind sea state, wherein the state of the swell comprises a direction of the swell and the wind sea state comprises a wind sea direction, and wherein the monomodal excitation exhibits a total direction equivalent to one out of the direction of the swell and the wind sea direction closest to a direction at right angles to the longitudinal axis of the vessel, a step (208) of determination of a datum relating to the sloshing of said loading as a function of the monomodal excitation.